Reversible spindle drive for textile machine



July 26, 1960 E. HAMEL 2,946,178

REVERSIBLE SPINDLE DRIVE FOR TEXTILE MACHINE Filed July 30, 1956INVENTOR EDMUND HAMEL ATTORNEY United REVERSIBLE SPINDLE DRIVE FORTEXTILE MACHENE The present invention relates to means to provide areversible spindle drive for textile machines and more particularly forspinning and twisting frames.

One of the objects of the present invention is to prd vide means tochange the direction of rotation of the spindles on spinning andtwisting frames.

Another object of the present invention is to change the direction ofrotation of the spindles of spinning and twisting frames by providingmeans to effect pole reversion of the main drive motor. In spinning andtwisting frames the delivery roller shafts and delivery rollers mustturn in the same direction at all times in order to provide a constantand uniform delivery of yarn or thread to the spindles irrespective ofwhether a left hand or right hand twist is imparted to the yarn orthread.

Inasmuch as thread delivery to the spindles and thread Winding on thespindles must be maintained in a direct ratio; it has been necessary toemploy a common drive for both the spindles and drawing rollers.Separate drives for the spindles and the drawing rollers are impracticaldue to the difficulties inherent in synchronizing the drive elements ofthe spindles with the drive elements of the drawing rollers.

A change in the direction of rotation of spinning and twisting spindlesis not only desirable but necessary in order to impart either a righthand or left hand twist to the yarn or thread.

In the past, mechanisms employed to change the direction of rotation ofspindles on spinning or twisting frames usually comprised a geartransmission at the drive head end of the frame. The transmission wasunder control of a motor. A change in the polarity of the motor effecteda change in the spindle drive through actuation of the transmissiongear. Complicated synchronizing apparatus was employed to insure exacttiming in the changing of the polarity of the motor in order to avoid aclash of the mechanical elements in the transmission.

The present invention obviates these difiiculties by eliminating thegear transmission and substituting a pivotally mounted vertical armwhich controls a horizontally mounted bell crank lever. The bell cranklever actuates and controls a double acting or pole reversing switchwhich controls the direction of rotation of the main drive shaft motor.

Other objects and advantages of the present invention will be pointedout'in part and become apparent in part in the following specificationand claims.

Referring to the drawings wherein like reference characters refer tolike parts.

Figure 1 is a diagrammatic end elevational view of the main drive of adouble sided spinning frame incorporating the present invention.

Figure 2 is a view similar to Figure 1 showing the various parts inactuated position.

Referring to Figures 1 and 2 wherein reference character 1 representsthe main drive shaft of a double sided spinning or twisting frame. Aspur gear 2 is fixed to and rotated by main drive shaft 1. Anintermediate gear 3 res Patent in constant mesh with spur gear 2 isfixed to a shaft 3A rotatively mounted in the machine frame. A drivedrum 4 is fixed to shaft 3A. A second shaft 4A is rotatively mounted inthe machine frame. An idler drum 4' is fixed to shaft 4A. Shafts 3A, 4A,and drums 4, 4' extend the full length of the machine.

Spindle bearings 6, 6 are rotatively mounted in the machine frame in amanner well known in the art. A plurality of spindle bearings 6, 6' areprovided. An idler drum 5A is rotatively mounted in the machine frame.An endless tape or belt 5 is passed over idler drum 5A, contacting drums4, 4' on opposite sides and then passing over drums 4, 4 engages spindlebearings 6, 6 to drive spindle bearings 6, 6' through drive drum 4. Thismechanism is old in the art.

A stub shaft 7A is fixed in the head end of the machine frame. A gear 7rotatively mounted on stub shaft 7A engages and is driven by spur gear2. An arm 10 is pivotally mounted on stub shaft 7A. Arm 10 is providedwith a shaft 10A. An intermediate gear 8 and a pinion gear 9 are fixedto shaft 10A. Arm 10 is also provided with a cam follower 10.

A bell crank lever 20 pivotally mounted in the head end of the machineframe at 21 is provided with a short arm 22 and two cam surfaces 25 and26 which are engaged in timed relation by cam follower 10'. A polereversing switch 24 fixed to the head end of the machine frame isprovided with a push button 23 under control of short arm 22.

Figures 1 and 2 depict spinning and twisting frames which are doublesided and in which a single shaft provides a common drive for both sidesof the frame.

Two delivery roll shafts 14A and 14b are rotatively mounted in oppositesides of the machine frame. Gears 14 and 14' are fixed to delivery rollshafts 14A and 14b respectively. Shaft 11A is fixed in one side of themachine frame. Shaft 11b is fixed in the other side of the machineframe. Shafts 12a and 12b are rotatively mounted in the machine frame.

A gear 11 is rotatively mounted on shaft 11A. A gear 15 is rotatibelymounted on shaft 11b. Gears 11 and 15 are in constant engagement. Twogears 12' and 13 are fixed to shaft 12b. Two gears 12 and lit-are fixedto shaft 12A. Gear 12' meshes with gear 11 while gear 13 meshes withgear 14. Gear 12 meshes with gear 15 while gear 13 meshes with gear 14.Gear 9 alternately meshes with gear 11 or 15 so as to drive deliveryroll gears 14 and 14' in the same direction regardless of the directionof rotation of shaft 1 and gear 2.

In operation pole reversing switch 24 is electrically connected to theelectric motor (not shown) which drives main drive shaft 1. ReferringtoFigure 2, main drive shaft 1 and spur gear 2 rotate in the directionof the arrow. Gear 3 meshing with spur gear 2 will cause drum 4to rotatein the direction of the arrow on drum 4. Tape 5 will cause drum 4' torotate in the direction of the arrow on drum 4'. Tape 5 therefore drivesspindle bearings 6, 6 in a given direction.

Gear 7 meshing with gears 2 and 8 Will cause gear 7 to rotate in thedirection of the arrow on gear 7 and gear 8 to rotate in the directionof the arrow on gear 8. Gear 9 having a common shaft 10A with gear 8 andengaging gear 11 will drive gear 11 in the direction of the arrow ongear 11. Gear 11 meshes with gear 12'. The shaft 12b common to gears 12'and 13 allows gear 12 to drive gear 13' which meshes with gear 14' todrive gear 14' in the direction of the arrow on gear 14.

When gear 9 engages gear 11, arm 10 is manually postioned so that camfollower 10' engages cam surface 26 thereby positioning short arm 22away from button 23 of pole reversing switch 24.

Referring to Figure 1, wherein gear 9 engages gear 15. Then arm ismanually positioned so that cam follower 10' engages cam surface 25thereby positioning short arm 22 against or toward button 23 of polereversing switch 24 to change the polarity of the main drive motor sothat main drive shaft 1 turns (Figure 1) in a direction opposite to thedirection of rotation of main drive shaft as shown in Figure 2.

Having shown and described preferred embodiments of the presentinvention, by way of example, but realizing that structural changes canbe made and other examples given without departing from eitherthefspirit or scope of this invention.

What I claim is:

1. A reversible spindle drive for textile machines having oppositelylocated spindle holders, and oppositely located first and seconddelivery roll shafts located above said oppositely located spindleholders, a main drive shaft, a first means rotatively connecting saidmain drive shaft with said oppositely located spindle holders torotatively drive said spindle holders in a pro-selected direction ofrotation, the combination therewith of a first gear train adapted torotate said first delivery roll shaft, a second gear train adapted torotate said second delivery roll shaft, said first and second gear trainintermeshing, a pivotally mounted arm having a cam follower and providedwith gear means operatively connected to said main drive shaft andadapted to engage either said first gear train or said second geartrain, to drive said first and second gear trains in the same directionregardless of the direction of rotation of said main drive shaft, abutton actuated pole reversing switch for controlling the direction ofrotation of said main drive shaft, a pivotally mounted bell crank leverhaving a cam surface and a short arm, said short arm engaging to controlthe position of said button actuated pole reversing switch, said camfollower engaging said cam surface and through manual control of saidarm actuating said'bell crank lever to position said short arm toward oraway from said button actuated pole reversing switch and cause said gearmeans to engage either said first gear train or said second gear train.

2. A reversible spindle drive for textile machines consisting of amachine frame, oppositely located spindle holders mounted for rotationin said machine frame, a main drive shaft rotatively mounted in 'saidmachine frame, a spur gear fixed to said main drive shaft, a secondshaft and a third shaft, both rotatively mounted in said machine frameon opposite sides of said main drive shaft,

an intermediate gear fixed to said second shaft and in meshingengagement with said spur gear, an idler drum rotatively mounted in saidmachine frame, a first drum fixed to said second shaft, a second drumfixed to said third shaft, an endless tape engaging to unite forrotation of said idler drum, said first drum, said second drum and saidoppositely located spindle holders, a stub shaft fixed in said machineframe, a first gear ro-tatively mounted on said stub shaft engaging saidspur gear, an arm pivotally mounted on said stub shaft. a fourth shaftrotatively mounted on said arm, an intermediate and a pinion gear fixedto said fourth shaft, said intermediate gear engaging said first gear, acam follower formed in one end of said arm, a bell crank lever pivotallymounted in said machine frame having a short arm and two cam surfaces, apole reversing switch provided with a push button under control of saidshort arm for controlling the direction of rotation of said main shaft,said cam follower engaging alternately one or the other of said two camsurfaces, a first delivery roll shaft rotative'ly mounted in one side ofsaid machine frame, a second delivery roll shaft rotatively mounted inthe opposite side of the machine frame, a second gear fixed to saidfirst delivery roll shaft, a third gear fixed to said second deliveryroll shaft, a fifth and a sixth shaft fixed in said machine frame, aseventh and an eighth shaft rotatably mounted in said machine frame, afourth gear rotatably mounted on said fifth shaft, a fifth gearrotatably mounted on said sixth shaft, a sixth and a seventh gear fixedto said seventh shaft, an eighth and a ninth gear fixed to said eighthshaft, said seventh gear engaging said fourth gear, said sixth gearengaging said second gear, said ninth gear engaging said fifth gear,said eighth gear engaging said third gear, manual operable means toalternately cause said pinion gear to engage said fourth gear or saidfifth gear to position said cam follower in engagement with one of saidtwo cam surfaces to cause said short arm to engage said push button tochange the direction of rotation of said spindle holders while allowingsaid first and second delivery shafts to always rotatein the samedirection.

References Cited in the file of this patent UNITED STATES PATENTS2,244,141 Camp June 3, 1941 FOREIGN PATENTS 534,365 Great Britain Mar.'5, 1941

